.impress {
  position: absolute;
  left: 50%;
  top: 50%;
  transform-origin: left top;
  transition-duration: 1s;
  transform-style: preserve-3d;
  perspective: 1000px;
}

.canvas {
  position: absolute;
  transform-origin: left top;
  transition-duration: 1s;
  transform-style: preserve-3d;
}
